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hotwire toubleshooting

Posted: Fri Oct 26, 2007 8:10 pm
by southsea stag
Can anyone help? Just put a 3.9efi into a stag but having starting problems, it starts for a few seconds and then stalls. Changed the stepper motor as it had siezed and still the same. When it starts, it idles about 2500 rpm for a short time and the manifolds get very hot for the short time it runs.
Any ideas would be much apprieciated.
Cheers

Posted: Fri Oct 26, 2007 8:21 pm
by Coops
is the fuel pump running while the engine is running?
is the fuel lines round the correct way?
are you using a correct efi rated fuel pump?

Posted: Fri Oct 26, 2007 8:55 pm
by southsea stag
The fuel pump is from an sd1 which I'm told is o.k, I believe the pump is running because when I unplug the stepper motor it will continue to run although eratically so i'm thinking the pump's still going, I don't run it too long because of the manifolds getting very hot. I'm positve the flow and return are o.k being the return coming off the regulator.

Cheers
Mike